US2857800A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Roller inspecting device
Assignee: Timken Co
•
Filing: 1952-11-20
•
Granted: 1958-10-28
•
Expires: 1972-11-20
Abstract
No abstract record available.
Inventors
- 👤 Samuel N Stevens
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 07:23
CPC Classifications
G; G01; G01B; G01B11/00; G01B11/24; G01B11/2408
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1640567A
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US2027595A
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US2246501A
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US2208882A
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US2313218A
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US2265037A
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US2451501A
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US2531529A
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US2593127A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-10-27 | 1962-04-28 | 1962-10-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-10-27 | 1966-04-28 | 1966-10-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-10-27 | 1970-04-28 | 1970-10-28 | $7700.00 | Window Closed / Lapsed |